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Mezhova fire, 21 August 2026 Межівський район · Mezhova

Out · last detection 23 Aug 2026, 10:51 UTC

The fire started on 21 August 2026 in Mezhova, Ukraine, and satellites saw it burning for 3 days. Copernicus mapped a burnt perimeter of 316 hectares from satellite imagery, spread across a single municipality.

It is the 41th largest in Dnipropetrovsk Oblast since 2016 (of 183 with a page). Number 267 in Ukraine in 2026, of 984.

The power measured by the satellite is low (17.0 MW in the strongest hotspot), more typical of grass or stubble burning, or a slow surface fire, than of a large crown fire.

Compare with…
Burnt area
316ha
Copernicus perimeter
Duration
≈ 3days
21 Aug 2026 – 23 Aug 2026
Municipalities hit
1
districts
Started on
21 Aug
2026
Heat detections
13
in a single hotspot: 17 MW
Danger at start
36
High · FWI index
Average daily power
60MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 21 Aug23 Aug
23 Aug 2026

How it evolved, day by day

21 Aug 2026 · 17 MW · 5 23 Aug 2026 · 104 MW · 8
21 Aug 23 Aug

Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.

The weather it burned in

35°high
42km/h · peak gust
18%lowest humidity

It had gone 22 days without rain (1 mm or more) when it started. Rain came after the fire: 7.6 mm on 27 Aug.

This area had burned before

69% of the perimeter overlaps earlier fires recorded since 2016: 218 ha in 2024.

What happened to each town

  1. Mezhova Межівський район 23,255 inhabitants · 17.0 km from the centre where it started
    317 ha reached on 21 Aug
    0.3 %

Burnt area inside each municipality, from crossing the official perimeter with administrative boundaries. The distance runs from the point marking the centre of each area to the nearest fire: staying a kilometre away does not mean it reached the houses.

What burned

  • Agricultural areas51 %
  • Other natural land32 %
  • Mixed forest18 %

Land cover inside the perimeter as reported by Copernicus EFFIS (outside the Corine Land Cover area).

The weather day by day

ECMWF ERA5 reanalysis at the fire location, the standard reference for past weather, and the Canadian Fire Weather Index (the same system Copernicus uses), computed by WorldFires from that data. Days after the fire run until the first rain.

Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)

Day High Min. humidity Peak gust Rain Danger (FWI)
21 Aug 32.1 °C 24 % 33 km/h 0.0 mm High 36
22 Aug 34.8 °C 20 % 32 km/h 0.0 mm Very high 41
23 Aug 34.8 °C 18 % 42 km/h 0.0 mm Extreme 52
24 Aug after 27.2 °C 26 % 41 km/h 0.0 mm Very high 45
25 Aug after 27.2 °C 25 % 32 km/h 0.0 mm High 38
26 Aug after 27.1 °C 34 % 29 km/h 0.3 mm High 36
27 Aug after 20.3 °C 69 % 30 km/h 7.6 mm Very low 1

Before and after, from space

Drag the line to compare the same ground before the fire and after it.

Before · 14 Aug 2026
After · 30 Aug 2026

If the day is cloudy, change the date: each satellite passes once a day. In false colour the burnt ground looks brown or red.

The smoke

CAMS · Copernicus

On 26 August 2026 the air beside the fire reached 19 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).

PM2.5 peak19 µg/m³
Days over the guideline0 days
PM1024 µg/m³
Optical depth0.68
212223242526
Good Fair Moderate Poor Very poor Extremely poor

Particles from the Copernicus CAMS model at the centre of the perimeter; these are not measurements in each town. The pale bar is the worst hour, the solid one the daily average.

Open-Meteo.com (CC BY 4.0) · Copernicus Atmosphere Monitoring Service (CAMS)

Detections table · 13Every satellite heat detection, one by one, with time, satellite, power and coordinates.
⬇ Download CSV Times in UTC. Each detection is a 375 m pixel: a large fire yields hundreds per pass.
Date and timeSatelliteFRP (MW)LatLon

Other fires nearby

All fires in Ukraine ›

Frequently asked questions

How long did the Mezhova fire last?
The official perimeter only gives the start date (23 August 2026). The end comes from the heat detections inside the perimeter: it burned until 23 August 2026 (3 days from 21 August 2026), the last day with detections before more than 10 days in a row without any, so it is approximate.
How much area did it burn?
The perimeter Copernicus measured from satellite imagery is 316 hectares (3.2 km²). Official national figures may differ.
Which municipalities burned?
The fire only entered Mezhova (317 ha, 0.3 %).
Did the fire reach a town?
The fire started in Mezhova and came within 17.0 km of its centre. That is the distance from the perimeter, or the nearest hotspot, to the point marking the centre; it does not mean it entered the houses.
What was the weather like?
During the fire the temperature reached 34.8 °C, humidity dropped to 18 % and gusts hit 42 km/h. The fire danger index (FWI) reached 52, class Extreme.
Where does this data come from?
From the EFFIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Ukraine (geoBoundaries). It is not an official report.

Where to verify it

A satellite detection is not an official report. Final figures and the fire’s status are published by each country’s emergency service.

Emergency number: 101 · 112 · Emergency number and official warnings ›

Satellite cross-check

History of this page Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.

No changes since 24 October 2026.

RSS Changes to this page

Does something look wrong on this page?

This page is built from satellite data and official records, and it sometimes gets things wrong: the wrong dates, the wrong town, two fires merged into one, or something that was not a wildfire at all. If you know this fire first-hand (you live nearby, saw it, fought it or reported on it), tell us what really happened and we will check it.

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We will only use your email to reply about this report. Privacy. This is not an emergency service: if there is a fire now, call 101 · 112.

How we know this
  • Perimeter: EFFIS (Copernicus), mapped on satellite imagery.
  • The official perimeter has no end date: the end is the last day with VIIRS detections inside the perimeter before a gap of more than 10 days (150 days at most), so it is approximate. 13 Suomi-NPP VIIRS detections on those dates.
  • We have not matched this page with any official record.
  • Weather: Copernicus ERA5 reanalysis at the fire location, in cells of about 25 km.

How we build fire pages: methodology ›

Where this data comes from

The perimeter and land cover come from the Copernicus European Forest Fire Information System (EFFIS), measured on MODIS and Sentinel-2 imagery and published under CC BY 4.0. Heat detections come from the VIIRS sensors aboard Suomi-NPP and NOAA-20, distributed by NASA FIRMS at 375 m resolution. Municipal boundaries come from geoBoundaries ADM2 (Public Domain). The area per municipality is computed by WorldFires by crossing the perimeter with those boundaries, so it may differ slightly from each country’s official figure.